167 lines
4.0 KiB
GLSL
167 lines
4.0 KiB
GLSL
//======= Copyright (c) 2015-2020 Vera Visions LLC. All rights reserved. =======
|
|
//
|
|
// Purpose:
|
|
//
|
|
// Lightmapped surface, normalmap's alpha contains the reference for how
|
|
// specular it should be.
|
|
//==============================================================================
|
|
|
|
!!ver 110
|
|
!!permu FOG
|
|
!!permu BUMP
|
|
!!permu DELUXE
|
|
!!samps diffuse normalmap lightmap deluxemap
|
|
|
|
!!permu FAKESHADOWS
|
|
!!cvardf r_glsl_pcf
|
|
!!samps =FAKESHADOWS shadowmap
|
|
|
|
!!cvardf r_skipDiffuse
|
|
!!cvardf r_skipNormal
|
|
!!cvardf r_skipSpecular
|
|
!!cvardf r_skipLightmap
|
|
|
|
#include "sys/defs.h"
|
|
|
|
varying vec2 tex_c;
|
|
varying vec3 eyevector;
|
|
|
|
varying vec2 lm0;
|
|
#ifdef LIGHTSTYLED
|
|
varying vec2 lm1, lm2, lm3;
|
|
#endif
|
|
|
|
#ifdef FAKESHADOWS
|
|
varying vec4 vtexprojcoord;
|
|
#endif
|
|
|
|
#ifdef VERTEX_SHADER
|
|
void lightmapped_init(void)
|
|
{
|
|
lm0 = v_lmcoord;
|
|
#ifdef LIGHTSTYLED
|
|
lm1 = v_lmcoord2;
|
|
lm2 = v_lmcoord3;
|
|
lm3 = v_lmcoord4;
|
|
#endif
|
|
}
|
|
|
|
void main ()
|
|
{
|
|
lightmapped_init();
|
|
tex_c = v_texcoord;
|
|
|
|
vec3 eyeminusvertex = e_eyepos - v_position.xyz;
|
|
eyevector.x = dot(eyeminusvertex, v_svector.xyz);
|
|
eyevector.y = dot(eyeminusvertex, v_tvector.xyz);
|
|
eyevector.z = dot(eyeminusvertex, v_normal.xyz);
|
|
|
|
gl_Position = ftetransform();
|
|
|
|
#ifdef FAKESHADOWS
|
|
vtexprojcoord = (l_cubematrix*vec4(v_position.xyz, 1.0));
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef FRAGMENT_SHADER
|
|
#include "sys/fog.h"
|
|
#include "sys/pcf.h"
|
|
|
|
#if r_skipLightmap==0
|
|
#ifdef LIGHTSTYLED
|
|
#define LIGHTMAP0 texture2D(s_lightmap0, lm0).rgb
|
|
#define LIGHTMAP1 texture2D(s_lightmap1, lm1).rgb
|
|
#define LIGHTMAP2 texture2D(s_lightmap2, lm2).rgb
|
|
#define LIGHTMAP3 texture2D(s_lightmap3, lm3).rgb
|
|
#else
|
|
#define LIGHTMAP texture2D(s_lightmap, lm0).rgb
|
|
#endif
|
|
#else
|
|
#ifdef LIGHTSTYLED
|
|
#define LIGHTMAP0 vec3(0.5,0.5,0.5)
|
|
#define LIGHTMAP1 vec3(0.5,0.5,0.5)
|
|
#define LIGHTMAP2 vec3(0.5,0.5,0.5)
|
|
#define LIGHTMAP3 vec3(0.5,0.5,0.5)
|
|
#else
|
|
#define LIGHTMAP vec3(0.5,0.5,0.5)
|
|
#endif
|
|
#endif
|
|
|
|
vec3 lightmap_fragment()
|
|
{
|
|
vec3 lightmaps;
|
|
|
|
#ifdef LIGHTSTYLED
|
|
lightmaps = LIGHTMAP0 * e_lmscale[0].rgb;
|
|
lightmaps += LIGHTMAP1 * e_lmscale[1].rgb;
|
|
lightmaps += LIGHTMAP2 * e_lmscale[2].rgb;
|
|
lightmaps += LIGHTMAP3 * e_lmscale[3].rgb;
|
|
#else
|
|
lightmaps = LIGHTMAP * e_lmscale.rgb;
|
|
#endif
|
|
return lightmaps;
|
|
}
|
|
|
|
#if r_skipNormal==0
|
|
vec3 lightmap_fragment(vec3 normal_f)
|
|
{
|
|
#ifndef DELUXE
|
|
return lightmap_fragment();
|
|
#else
|
|
vec3 lightmaps;
|
|
|
|
#if defined(LIGHTSTYLED)
|
|
lightmaps = LIGHTMAP0 * e_lmscale[0].rgb * dot(normal_f, (texture2D(s_deluxemap0, lm0).rgb - 0.5) * 2.0);
|
|
lightmaps += LIGHTMAP1 * e_lmscale[1].rgb * dot(normal_f, (texture2D(s_deluxemap1, lm1).rgb - 0.5) * 2.0);
|
|
lightmaps += LIGHTMAP2 * e_lmscale[2].rgb * dot(normal_f, (texture2D(s_deluxemap2, lm2).rgb - 0.5) * 2.0);
|
|
lightmaps += LIGHTMAP3 * e_lmscale[3].rgb * dot(normal_f, (texture2D(s_deluxemap3, lm3).rgb - 0.5) * 2.0);
|
|
#else
|
|
lightmaps = LIGHTMAP * e_lmscale.rgb * dot(normal_f, (texture2D(s_deluxemap, lm0).rgb - 0.5) * 2.0);
|
|
#endif
|
|
|
|
return lightmaps;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
void main (void)
|
|
{
|
|
#if r_skipDiffuse==0
|
|
vec4 diffuse_f = texture2D(s_diffuse, tex_c);
|
|
#else
|
|
vec4 diffuse_f = vec4(1.0,1.0,1.0,1.0);
|
|
#endif
|
|
|
|
#if r_skipNormal==1
|
|
vec3 normal_f = normalize(texture2D(s_normalmap, tex_c).rgb - 0.5);
|
|
#else
|
|
#define normal_f vec3(0.0,0.0,0.5)
|
|
#endif
|
|
|
|
if (diffuse_f.a < 0.5) {
|
|
discard;
|
|
}
|
|
|
|
#ifdef FAKESHADOWS
|
|
diffuse_f.rgb *= ShadowmapFilter(s_shadowmap, vtexprojcoord);
|
|
#endif
|
|
|
|
#if r_skipNormal==1
|
|
diffuse_f.rgb *= lightmap_fragment();
|
|
#else
|
|
diffuse_f.rgb *= lightmap_fragment(normal_f);
|
|
#endif
|
|
|
|
#if r_skipSpecular==0
|
|
float gloss = texture2D(s_normalmap, tex_c).a * 0.1;
|
|
vec3 halfdir = normalize(normalize(eyevector) - e_light_dir);
|
|
float spec = pow(max(dot(halfdir, normal_f), 0.0), FTE_SPECULAR_EXPONENT);
|
|
spec *= gloss;
|
|
diffuse_f.rgb += spec;
|
|
#endif
|
|
|
|
gl_FragColor = fog4(diffuse_f);
|
|
}
|
|
#endif
|